Gas-heater



J. l. ROBIN.

GAS HEATER.

APPLICATION f lLED DEc.11,1919.

1,35 1,004. Ptelltelug 24,1920.

JMJ

Ff o w/L 0.1

UNITED JACOB I. ROBIN, 0F

f FFME EW YQRK, N. Y.

GAS-HEATER.

Application filed December 11, 1919.

To all 107mm t may concern:

Be it known that l, JACOB l. ROBIN, a citi- Zen of the United States of America, residing* at New York, in the county of New York and State of New York, have invented certain new and useful improvements in Gas-Heaters, of which the following is a specification.

This invention has reference to heaters for artificial, natural, or vapor gas and in which the flame is produced by the aid of a bunsen and has as its principal object to produce a heater of simple and durable construction and whereby, with a compa atively small amount of fuel, a powerful heating flame can be produced.

To accomplish my object, l provide a heater in which the heat is directed downwardly by a heat bell, the bottom or mouth of which is obstructed by a perforated surface of heat conductingmaterial, arranged in a plane where it will intersect the currents of gas mixture, whereby a perfect combustion of the latter' will be caused to take place at the bottom or mouth of the bell and :in-exceedinglystrong blue flame will be produced on the outside of the perforated surface. y 1

My invention is based on the fact that when, in a current ofnas mixture, a finely perforated surface is introduced, this surface will minutely divide this mixture and permit the secondary air to become thoroughly mixed with it so that a more complete combustion of the mixture effected at the outer layer of the flames, By making); the `perforated surface of heat conducting material such as wire zgauze, the heat radiated therefrom will additionally aid in producing` a complete combustion.

The perforated surface additionally acts as a safety means against the escape of `gas into the room, when' the flame or flames are accidentally blown out. In such case, the currents of the ,ons mixture continuing to issue from the liet openings will beimmediately reignited 'at the said Aopenings by the heat radiating' from the perforated surface.

My invention also consists in the pai-tiem lar construction, combination and arrangement of parts as will hereinafter he more fully described and defined in the appended claims.

ln the accompanyinga drawing in which Specification of Letters Patent.

Patented Ann'. 2d, 1920.

Serial No. 344-1378.

similar reference characters denote corresponding parts, Figure l is a vertical sectional elevation of my new heater; Fig'. 2 is a reduced cross section on line 2-2 of flfig. l as seen in the direction of the arrows; Fig. 3 is a cross section on line 3*-3 of Fig'. l; Fig: Il is a vertical section of a part of the bell with a modiiied construction of the obst ructing,` member at the bottom thereof; Fig. 5 is a bottom View thereof, and Fig. 6 is a top plan view of an incandescent body and holder to be applied to the burner tube. Referring to the drawing more in detail, a denotes an ordinary bunsen` on which is mounted a burner or mining` tube Z) carrying` at its upper end a conical fitting' or manifold c which is provided with a plurality of burner openings c" and a shell or bell (Z which may be or may not be of heat conducting material, mounted centrally on top of the said fitting c to inclose a comparatively large space around the flames.

Attached to the bell or otherwise fixed in position is a perforated member c in form of a wire gauze, preferably of copper, which is adapted to partially obstruct the open bottom or mouth of the bell and to lie in a plane intersecting the currents of the gas mixture issuing from the burner holes.

Jflccordingg,` to the present embodiment of my invention, l provide to this end two concentric rinegs f, which may be made of refractory or other suitable material and of which the inner ring' f is made to fit on the mixing tube Y) and the outer ring; may be provided with projections f2 adapted to be bent around the circum'erential bottom edge of the bell and to serve as retaining means. yl`he gauze is stretched over the two concentric rings and suitably fastened thereto. rllhe outer ring 7i may be made of somewhat smaller diameter than the diameter of the outer edge of the bell so that a substantially unobstructed annular space f/ will be left between the latter and the said ringf.

By reason of the gauze dividing minutely the gras mixture striking` it in its downward flow, the secondary air rljishingf in from the outside 'through the openings adjl acent to the currents of gas mixture will become thoroughly mired with said mixture and there by complete the combustion lat the outer layers of the flames through which extends the perforated surface. The completion of the combustion will be additionally aided by the heat radiated into the mixture from the heated Wire gauze. As a result of this, a powerful blue iiame is produced spreading along the entire outer surface of the Wire gauze. At the same time, the inrushing secondary air Will deflect the flame against the bell body causing it to issue through the annular opening g.

To convert the blue flame in a red glow I may provide in the annular space g' a net- 'ting 7L of refractory and non-combustible material g', such as asbestos, clay or the like. Such netting is shown in Figs. 4 and 5. rlhe netting may be in form of Ya single piece stamped of a sheet of asbestos or the like, or may be formed from asbestos threads covering the annular space g in Zigform.

In the example shown, the top ofthe bell is adaptedto serve as a cover for the manifold c and to this end is holloivedto form a capv al with an annular groove Z3 therein adapted to engage the upper outwardly bent edge of theconical manifold c. The central part of the cap Z is pressed downwardly in form of a cone Z3 the point of which extends toward the center of the mixing tube and which serves to aid in bringing about `a uniform distribution of the gas mixture entering the manifold from the mixing tube.

`Without in any Way affecting the heat capacity of my heater the bulb shaped parts of the flames, projecting doivnnf'ardly from` the Wire gauze Where the latter intersect, the currents of the gas mixture may be utilined for illuminating purposes. To this end incandescent bodies such as a sheet or sheets of impregnated mantle fabric may be suitably suspended from the heater to extend though the said bulb shaped portions of the flame. In the present example a holder z' in form of a fork is provided which may be suitably supported on the mixing tube. The incandescent body jlmay consist of a piece of mantle fabric to the longitudinal edges of Which may .be fixed tubular sockets lo capable'of engaging the arms of the forked holder, so that the body may be slipped over and supported by the forks.

Since this construction and that ofV my heatermay be modified in various, Ways without departing from the spiritl of my invention, I do not Wish to limit myself to the details described and shown.

What I Vclaim and desire to `secure by Letters Patent is l. In a gas heater, the combination with aA bunsen, of a `manifold burnerhaving down- Wardly directed jet openings, a bell, and a perforated surface extending substantially through the entire area of the mouth of said bell and adapted to intersect the gas currents, so as to cause complete combustion or the gas mixture and producethereby blue flames on the outer face of said perforated surface.

2. In a gas heater, the combination with a bunsen, of a manifold burner, a bell supported onsaid burner andi a perforated surface of heat conducting material,V extending substantially over the entire mouth of said bell in a plane intersecting the currents of the gas mixture and suspended from said bell\vhereby a complete combustion of the mixture will take place on the outer face of said perforated surface and blue iiames produced. v

3. A gas heater, comprising a bunsen, a mixing vtube thereon having a plurality of burner openings, a heat bell adapted to envelop the currents of the gas mixture issuing from the burner openings, and a perforated surface of heat conducting material stretched across themouth of and secured to said bellto intersect said currents and to form an annular opening between itself and the bell body, for the purpose specified. y

4t. A gas heater comprising a bunsen, a mixing tube thereon, a manifold on said mixing tube having a plurality of burner openings,

a bell mounted-on said manifold and adapted to envelop the currents of the gas mixture issuing from said burner openings and a Wire gauze supported from said bell to extend substantially over the entire mouth of said bell in a plane intersecting said currents and to leave an annular. openingbetween itself and the bell for the purpose specified.

5. A gas heater comprising a multiple Bunsen burner, a heat bell supported thereon and adapted to envelop the currents of gas mixture issuing from said burner, a Wire gauze suspended from said bell to extend substantially over the entire mouth of said bell ina plane intersecting they currents of the gas mixture and to leave an annular opening between itself and said bell andv a perforated body of refractory material obstructing said opening for the purpose specified. 1 Y

6. In combination with a gas heater as per claims 1-5V of an illuminating device consisting of a holder supported on the burner tube and an incandescent body suspended from said holder.

7. In combination with a gas heater as per claims 1-5, of 'an illuminating device consisting of a forked holdersupported on the burner tube. andan incandescent body supported onsaid holder.

Y 8. In a gas heater, a bunsen,an upright mixing tube, a manifold on the upper end of said mixing tube having a plurality of downwardly directed openings, a bell supported4 on said manifold and a perforated surface ofheat conducting material extending substantially over the entire area of the mouth of said bell and suspended from said bell, said perforated surface being adapted to cause complete combustion of the gas mixture flowing therethrough and to produce blue flames on its outer face.

9. In a gas heater, a bunsen, an upright mixing tube leading from said bunsen, a manifold supported on top of said mixing tube and having a plurality of downwardly directed jet openings, a bell supported on top of said manifold and a disk shaped perforated surface extending substantially over the entire area of the mouth of said bell and suspended from the latter, said perforated surface being adapted to cause complete combustion of the gas mixture and produce blue flames on its outer face.

l0. In a gas heater, a bunsen, an upright mixing tube leading from said bunsen, a manifold supported onV top of `said mixing tube and having a plurality of downwardly directed jet openings, a bell supported on top of said manifold and a disk shaped member extending over the mouth of said bell and composed of annular concentric rings and a gauze stretched over the annular face between said rings,.the said gauze being adapted to intersect the gas currents to cause complete combustion of the gas mixture and produce blue flames on its outer face.

l1. In a gas heater, a bunsen, an upright mixing tube leading from said bunsen, a manifold supported on top of said mixing tube and having a plurality of downwardly directed jet openings, a bell supported on tcp of said manifold and a disk shaped member composed of two concentric rings, the outer ring having arms engaging said bell and the inner ring being mounted on said mixing tube and a gauze stretched over the annular space between said two rings and fixed to the latter, said gauze being adapted to intersect the gas currents and thereby effect complete combustion of the gas mixture and produce blue flames on its outer face.

l2. In a gas heater, a bunsen, an upright mixing tube leading from said bunsen, a manifold supported on top of said mixing tube and having a plurality of downwardly directed jet openings, a bell supported on top of said manifold and a disk shaped member extending over the mouth of said bell, said member being composed of two concentric rings, of which the outer one is smaller in diameter than the diameter of the mouth of said bell to form an annular space between itself and said bell and has arms engaging the latter and of which the inner ring is mounted on said mixing tube and a gauze stretched over the annular space between said two rings and connected to the latter, the said gauze being adapted to intersect the gas currents to effect complete combustion of the gas mixture and produce blue flames on its outer face.

13. A combination gas heater and lamp consisting of a bunsen, a mixing tube leading from said bunsen, a manifold on said mixing tube having a plurality of downwardly directed jet openings, a bell supported on said manifold, a perforated surface extending substantially over the entire area of the mouth of said bell to cause complete combustion of the gas mixture and produce blue flames on its outer face and a holder mounted on said mixing tube to intersect the flames and serving to support incandescent bodies.

In testimony whereof I affix my signature in presence of two witnesses.

JACOB I. ROBIN.

vWitnesses MAX D. ORDMANN, JOSEPH T. MoMAHoN. 

